Marechal Cunha Machado International Airport

SBSL / SLZ

São Luís, BR

Current TAF Forecast

Raw TAF:
TAF SBSL 050823Z 0512/0612 06005KT 8000 SCT017 TX29/0518Z TN24/0609Z TEMPO 0518/0522 06015KT 4000 SHRA BKN012 FEW025TCU TEMPO 0606/0612 12005KT RMK PHI

Detailed TAF Table

Parameter
Thu
12:00Z
+-1h
Thu
13:00Z
+0h
Thu
14:00Z
+1h
Thu
15:00Z
+2h
Thu
16:00Z
+3h
Thu
17:00Z
+4h
Thu
18:00Z
+5h
Thu
19:00Z
+6h
Thu
20:00Z
+7h
Thu
21:00Z
+8h
Thu
22:00Z
+9h
Thu
23:00Z
+10h
Fri
00:00Z
+11h
Fri
01:00Z
+12h
Fri
02:00Z
+13h
Fri
03:00Z
+14h
Fri
04:00Z
+15h
Fri
05:00Z
+16h
Fri
06:00Z
+17h
Fri
07:00Z
+18h
Fri
08:00Z
+19h
Fri
09:00Z
+20h
Fri
10:00Z
+21h
Wind Dir
60°
NE
60°
NE
60°
NE
60°
NE
60°
NE
60°
NE
60°
NE
60°
NE
60°
NE
60°
NE
60°
NE
60°
NE
60°
NE
60°
NE
60°
NE
60°
NE
60°
NE
60°
NE
120°
SE
120°
SE
120°
SE
120°
SE
120°
SE
Wind Speed
5 kt
5 kt
5 kt
5 kt
5 kt
5 kt
15 kt
15 kt
15 kt
15 kt
5 kt
5 kt
5 kt
5 kt
5 kt
5 kt
5 kt
5 kt
5 kt
5 kt
5 kt
5 kt
5 kt
Visibility
8 km
8 km
8 km
8 km
8 km
8 km
4 km
4 km
4 km
4 km
8 km
8 km
8 km
8 km
8 km
8 km
8 km
8 km
8 km
8 km
8 km
8 km
8 km
Weather
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
Showers Rain
SHRA
Showers Rain
SHRA
Showers Rain
SHRA
Showers Rain
SHRA
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
☀️ Clear
Clouds
SCT017
SCT017
SCT017
SCT017
SCT017
SCT017
BKN012
FEW025TCU
BKN012
FEW025TCU
BKN012
FEW025TCU
BKN012
FEW025TCU
SCT017
SCT017
SCT017
SCT017
SCT017
SCT017
SCT017
SCT017
☀️ CLR
☀️ CLR
☀️ CLR
☀️ CLR
☀️ CLR
Ceiling
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
1,200 ft
AGL
1,200 ft
AGL
1,200 ft
AGL
1,200 ft
AGL
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
🌤️ Unlimited
Flight Rules MVFR MVFR MVFR MVFR MVFR MVFR IFR IFR IFR IFR MVFR MVFR MVFR MVFR MVFR MVFR MVFR MVFR VFR VFR VFR VFR VFR
Day/Night
☀️
Day
☀️
Day
☀️
Day
☀️
Day
☀️
Day
🌇 18:01Z
☀️
Day
🌇 18:01Z
☀️
Day
🌇 18:01Z
🌙
Night
🌇 18:01Z
🌙
Night
🌇 18:01Z
🌙
Night
🌙
Night
🌙
Night
🌙
Night
🌙
Night
🌙
Night
🌙
Night
🌅 05:58Z
🌙
Night
🌅 05:58Z
🌙
Night
🌅 05:58Z
☀️
Day
🌅 05:58Z
☀️
Day
🌅 05:58Z
☀️
Day
☀️
Day
☀️
Day
Flight Rules
VFR: Visual Flight Rules
MVFR: Marginal VFR
IFR: Instrument Flight Rules
LIFR: Low IFR
Ceiling Colors
Red: < 500ft
Amber: 500-1000ft
Blue: 1000-3000ft
Green: > 3000ft
⛈️ TCU: Towering Cumulus
🌩️ CB: Cumulonimbus
+Nh: Hours from now%: Probability of occurrenceAGL: Above Ground Level

Forecast Periods

BASE
MVFR
Wind
60° at 5 kt
Visibility
8 km
Clouds
SCT017
📖 Plain English Explanation:

This is the base forecast condition. Winds from the East-Northeast (60°) at 5 kt. Visibility will be good at 8 km. Scattered clouds at 1700 feet. Marginal VFR conditions - some restrictions for visual flying.

TEMPO 18:00Z - 22:00Z
IFR
Wind
60° at 15 kt
Visibility
4 km
Weather
Showers Rain
Clouds
BKN012 FEW025TCU
📖 Plain English Explanation:

Temporary conditions (lasting less than an hour at a time) may include: Winds from the East-Northeast (60°) at 15 kt. Visibility will be moderate at 4 km. Weather conditions: Showers Rain. Broken clouds at 1200 feet, Few clouds at 2500 feet. Instrument Flight Rules (IFR) conditions - instrument flying required.

TEMPO 06:00Z - 12:00Z
VFR
Wind
120° at 5 kt
📖 Plain English Explanation:

Temporary conditions (lasting less than an hour at a time) may include: Winds from the East-Southeast (120°) at 5 kt. Conditions will be suitable for Visual Flight Rules (VFR) operations.

📚 Understanding TAF Forecasts

Terminal Aerodrome Forecast (TAF) provides detailed weather forecasts specifically for aviation operations. Our system translates complex meteorological codes into plain English to help pilots of all experience levels understand forecasted conditions.

What TAF Includes:

  • • Wind direction, speed, and gusts
  • • Visibility in statute miles or kilometers
  • • Weather phenomena (rain, snow, fog, thunderstorms)
  • • Cloud coverage types and altitudes
  • • Forecast changes with timing
  • • Flight rules categories (VFR/IFR)

Change Indicators Explained:

  • BASE - Main forecast conditions
  • FM - Permanent change from specific time
  • BECMG - Gradual change over 2-4 hours
  • TEMPO - Temporary changes (less than 1 hour)
  • PROB30/40 - 30% or 40% probability

🛩️ Flight Rules Categories

VFR

Visual Flight Rules

  • • Ceiling ≥ 3000 ft
  • • Visibility ≥ 5 miles
  • • Good for visual flying

MVFR

Marginal VFR

  • • Ceiling 1000-3000 ft
  • • Visibility 3-5 miles
  • • Caution for VFR

IFR

Instrument Flight Rules

  • • Ceiling 500-1000 ft
  • • Visibility 1-3 miles
  • • Instruments required

LIFR

Low IFR

  • • Ceiling < 500 ft
  • • Visibility < 1 mile
  • • Challenging conditions

💡 TAF Reading Tips

For Student Pilots:

  • • Focus on the plain English explanations above
  • • Pay attention to flight rules categories
  • • Look for wind direction relative to runway headings
  • • Check for temporary conditions (TEMPO)

For Experienced Pilots:

  • • Cross-reference with raw TAF for precise timing
  • • Consider probability forecasts for alternate planning
  • • Monitor BECMG periods for gradual changes
  • • Always check current METAR vs TAF forecast

Important: TAF forecasts should always be supplemented with current METAR observations, PIREPs, and other weather information for complete situational awareness. Weather can change rapidly, and forecasts have inherent limitations.